Modelling of contact and friction in deep drawing processes

In Sheet Metal Forming (SMF) processes, such as deep drawing, friction plays an important role. Together with the deformation of the sheet, the friction determines the required punch force and the blankholder force. Consequently, the friction in uences the energy which is needed to deform a sheet material. Friction also in uences the stresses and strains in the workpiece material and, hence, the quality of the product. Therefore, it is important to control the friction between the tools and the workpiece.

[1]  R. Sayles,et al.  Investigations into asperity persistence in heavily loaded contacts , 1999 .

[2]  John A. Schey,et al.  Tribology in Metalworking: Friction, Lubrication, and Wear , 1983 .

[3]  W. C. Emmens,et al.  Tribology of flat contacts and its application in deep drawing , 1997 .

[4]  A. Moore,et al.  Deformation of metals in static and in sliding contact , 1948, Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences.

[5]  J. Williamson,et al.  On the plastic contact of rough surfaces , 1972, Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences.

[6]  K. Hokkirigawa,et al.  An experimental and theoretical investigation of ploughing, cutting and wedge formation during abrasive wear , 1988 .

[7]  J. Halling,et al.  Elastic/plastic contact of surfaces considering ellipsoidal asperities of work-hardening multi-phase materials , 1991 .

[8]  D. Bogy,et al.  An Elastic-Plastic Model for the Contact of Rough Surfaces , 1987 .

[9]  M. Sutcliffe,et al.  Molecular asperity theory of boundary friction , 1978 .

[11]  William R. D. Wilson,et al.  Surface asperity deformation during sheet forming , 1992 .

[12]  David Tabor,et al.  The Role of Surface and Intermolecular Forces in Thin Film Lubrication , 1981 .

[13]  K. Yamaguchi,et al.  Friction and Lubrication in the Deformation Processing of Metals : 2nd Report, Surface Texture and Coefficient of Friction , 1968 .

[14]  T. Tsukizoe,et al.  On the Mechanism of Contact Between Metal Surfaces: Part 2—The Real Area and the Number of the Contact Points , 1968 .

[15]  B. J. Briscoe,et al.  The shear strength of thin lubricant films , 1973, Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences.

[16]  Richard Timothy Hunt,et al.  Asperity persistence and the real area of contact between rough surfaces , 1972, Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences.

[17]  D. Tabor,et al.  Rheology of Thin Organic Films , 1974 .

[18]  J. Halling,et al.  The Elastic—Plastic Contact of Rough Surfaces and its Relevance in the Study of Wear , 1988 .

[19]  R. S. Sayles,et al.  A Numerical Model for the Elastic Frictionless Contact of Real Rough Surfaces , 1986 .

[20]  F. Chiang,et al.  On the Mechanism of Plastic Deformation Induced Surface Roughness , 1992 .

[21]  Real area of contact between a rough tool and a smooth workpiece at high normal pressures , 1976 .

[22]  N. B. Demkin,et al.  Plastic contact under high normal pressure , 1975 .

[23]  W. Wilson,et al.  Mechanics of Surface Roughening in Metal Forming Processes , 2001 .

[24]  P. F. Thomson,et al.  The roughening of free surfaces during plastic working , 1982 .

[25]  Liang Xian,et al.  A numerical model for the elastic contact of three-dimensional real rough surfaces , 1991 .

[26]  I. L. Singer,et al.  Friction and Energy Dissipation at the Atomic Scale - A Review , 1994 .

[27]  Tribological aspects of unlubricated deepdrawing processes , 1998 .

[28]  L. J. McLean,et al.  Plastic deformation of a metal surface in sliding contact with a hard wedge: its relation to friction and wear , 1984, Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences.

[29]  Mpf Sutcliffe,et al.  Surface asperity deformation in metal forming processes , 1988 .

[30]  A model of the friction of a smooth hard surface sliding over a softer one , 1997 .

[31]  D. Tabor,et al.  Shear Properties of Thin Polymeric Films , 1978 .

[32]  David Tabor,et al.  Relation between friction and adhesion , 1950, Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences.

[33]  Rudi ter Haar,et al.  Friction in sheet metal forming, the influence of (local) contact conditions and deformation , 1996 .

[34]  N. Suh,et al.  The Significance of Oxide Layers in Boundary Lubrication , 1986 .

[35]  S. D. Probert,et al.  Deformation of single and multiple asperities on metal surfaces , 1972 .

[36]  T. Thomas,et al.  Contact of rough surfaces: A review of experimental work , 1980 .

[37]  Nam P. Suh,et al.  The Mechanism of Friction in Boundary Lubrication , 1985 .

[38]  Patricia McGuiggan,et al.  Liquid to solidlike transitions of molecularly thin films under shear , 1990 .

[39]  H. Cheng,et al.  The Surface Deformation of Aluminum Compressed With Viscous Lubricants , 1974 .

[40]  J.A.G. Kals,et al.  Surface Roughness Caused by Metal Forming , 1985 .

[41]  John A. Williams,et al.  The prediction of friction and wear when a soft surface slides against a harder rough surface , 1996 .

[42]  J. Greenwood,et al.  Deformation of Surface Asperities During Bulk Plastic Flow , 1965 .

[43]  William R. D. Wilson,et al.  Real area of contact and boundary friction in metal forming , 1988 .

[44]  The Correlation of the Characteristics of Rough Surfaces with Their Friction Coefficients , 1987 .

[45]  Albert Dirk Rietman,et al.  Numerical analysis of inhomogeneous deformation in plane strain compression , 1999 .

[46]  P. V. Liempt.  Workhardening and substructural geometry of metals , 1994 .

[47]  K. Krausz,et al.  Unified constitutive laws of plastic deformation , 1996 .

[48]  T. Childs,et al.  The persistence of asperities in indentation experiments , 1973 .

[49]  McClelland,et al.  Molecular dynamics study of sliding friction of ordered organic monolayers. , 1993, Physical review letters.

[50]  Patricia McGuiggan,et al.  Fundamental experimental studies in tribology : the transition from interfacial friction of undamaged molecularly smooth surfaces to normal friction with wear , 1990 .

[51]  K. B. Blodgett.  Films Built by Depositing Successive Monomolecular Layers on a Solid Surface , 1935 .

[52]  T.H.C. Childs,et al.  Surface asperity deformation under bulk plastic straining conditions , 1999 .

[53]  T. C. Chivers,et al.  The variation of real contact area between surfaces with contact pressure and material hardness , 1974 .

[54]  K. Kobe.  The friction and lubrication of solids , 1951 .

[55]  P.L.B. Oxley,et al.  Sliding metallic friction with boundary lubrication: An investigation of a simplified friction theory and of the nature of boundary lubrication , 1990 .

[56]  H. Spikes.  Additive‐additive and additive‐surface interactions in lubrication , 1989 .

[57]  Chen Guangnan,et al.  Roughening of the free surfaces of metallic sheets during stretch forming , 1990 .

[58]  Chih Lin,et al.  A Survey of Current Models for Simulating the Contact between Rough Surfaces , 1999 .

[59]  T. H. C. Childs.  The persistence of roughness between surfaces in static contact , 1977, Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences.